124123031 has 4 divisors (see below), whose sum is σ = 127150464. Its totient is φ = 121095600.

The previous prime is 124123007. The next prime is 124123081. The reversal of 124123031 is 130321421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130321421 = 7121 ⋅18301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124123031 is a prime.

It is a super-2 number, since 2×124123031² = 30813053649253922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124123081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513655 + ... + 1513736.

It is an arithmetic number, because the mean of its divisors is an integer number (31787616).

Almost surely, 2^124123031 is an apocalyptic number.

124123031 is a deficient number, since it is larger than the sum of its proper divisors (3027433).

124123031 is an equidigital number, since it uses as much as digits as its factorization.

124123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027432.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 124123031 is about 11141.0516110464. The cubic root of 124123031 is about 498.8279628043.

Adding to 124123031 its reverse (130321421), we get a palindrome (254444452).

The spelling of 124123031 in words is "one hundred twenty-four million, one hundred twenty-three thousand, thirty-one".